Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
110018goodexcellent31excellent
100029goodexcellent51excellent
090025goodexcellent41excellent
080036goodexcellent61excellent
070047lightly pollutedexcellent81excellent
060034goodexcellent61excellent
050030goodexcellent51excellent
040026goodexcellent31excellent
030028goodexcellent31excellent
020029goodexcellent41excellent
010027goodexcellent41excellent
000026goodexcellent41excellent
230023goodexcellent41excellent
220020goodexcellent31excellent
210018goodexcellent31excellent
200015goodexcellent21excellent
190010excellentexcellent21excellent
18006excellentexcellent11excellent
17006excellentexcellent11excellent
16005excellentexcellent11excellent
150021goodexcellent11excellent
14004excellentexcellent11excellent
13004excellentexcellent11excellent
12005excellentexcellent11excellent